Speaking of still active, the new 24Hour Fitness gym near me has built three racquetball courts. I last played ten years ago when I had two good knees and weighed 170 pounds. I kept my racquet in the hopes I would one day play again and now I am.
I started playing two weeks ago and I'm just hitting the ball by myself for right now, getting my stroke and serve back which are much harder and stronger now because of my bodybuilding. I don't move very fast now(I weigh 245lbs), but this week I'm starting to jog around the court a little bit.
I also swim the gym pool a lot also because it burns lots of calories and is easy on my old body.
Oh and did I mention I'm getting much better sleep now? Thanks Powerfull!!
Yes Mick I will order the SC. Hopefully it will help my knee heal but six years after surgery it will never be right again.

I have no other joint problems which is very unusual for a man my age.